Nikola Tesla U.S. Patent 723,188 - Method of Signaling Patent Wrapper Page 31

588 Cam 13 In the matter of the application of Nikola Tesla, filed June 14, 1901, 522 Serial No. 64,662, Methods of Signalling. Hon. Commissioner of Patents, Room 91. Sir:- fer Lud sy bee 2 now amend in the following particulars: New York, December 26, 1901. In the matter of the application above named we On page 6, line, 9change "fill" to "film". Cancel the last line on page 8, and the first two lines on page 9, and insert: "the system e sa4 by periodically short circuiting, through an induction coil L³ and a rotating disk D4 with insulating and conducting sogments, a circuit p4 in inductive relation to said system". Cancel claims 2, 3 and 4 and substitute therefor the following: "2. The method of signalling, which consists in producing and transmitting a plurality of kinds or class08 of electrical impulses or disturbances, developing by the impulses of each class a current in one of a plurality of 2 receiving circuits tuned to respond exclusively there to and controlling by means of the conjoint action of such circuits a local circuit, as set forth. 3. The method of signalling which consists in producing a plurality series of impulses or disturbances differing from each other in character and order of succes-1